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<h1>Signal Generation
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<h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="up.png"></a></h2>
<div class="box"><strong>GENERATE VARIOUS TIME AND FREQUENCY-VARYING TEST SIGNALS</strong></div>

<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="up.png"></a></h2>
<div class="fragment"><pre class="comment"> GENERATE VARIOUS TIME AND FREQUENCY-VARYING TEST SIGNALS

 Three types of signals can be generated:

   1. Deterministic Signals (s(t))
   2. Noisy signals (n(t))
   3. Deterministic Signals plus Additive noise (s(t) + n(t))


 1. The type of deterministic signals s(t) that can be generate are:

   (i)   Linear Frequency Modulated (FM)
   (ii)  Quadratic FM
   (iii) Cubic FM
   (iv)  Stepped FM
   (v)   Sinusoidal FM
   (vi)  Hyperbolic FM

   The sampling frequency and length of the signal can be specified.
   Also the frequency bounds (starting and ending frequency) can be 
   specified.

 2. Noise types include:

    (i) Uniformly distributed random variable
    (ii) Gaussian distributed random variable

 3. The signal s(t) can be added to noise n(t).</pre></div>

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